Definition of "inappeasable" [in•ap•peas•a•ble]

• Difficult or impossible to appease: inappeasable resentment. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "He seemed to project those two shining knobs of temples of his into everything that went on and to brush his hair farther and farther back, until the very roots were almost ready to fly out of his head in inappeasable philanthropy."
• "In his former journey he acquired an inappeasable relish for his dreadful food."
• "The anguish it caused a man so compressed must have been terrible; the wrath it awakened inappeasable."